Digital camera displaying moving image and exposure control method thereof
View Patent ↗A digital camera including a lens, first and second sensors, a shutoff member, a display, a detector, an exposure amount determiner, and a still image generator. The first sensor receives light through the lens and the second sensor also receives light through the lens, but is different from the first sensor. The shutoff member performs a first shutoff of the light received by the first sensor through the lens and also ends the first shutoff. The display displays a moving image based on the light received by the first sensor, and while the moving image is displayed, the detector detects a shutter operation. The exposure amount determiner determines, in response to the detected shutter operation, an exposure amount based on the light received by the second sensor when the first sensor does not receive light through the lens. The still image generator generates a still image based on the light received by the first sensor and the exposure amount determined by the exposure amount determiner.
1. A digital camera comprising:
a lens;
a first sensor which receives light through the lens;
a display which displays a moving image based on the light received by the first sensor;
a detector which detects a shutter operation while the display is displaying the moving image;
a shutoff member which performs a first shutoff of the light received by the first sensor through the lens, in response to the detected shutter operation, and which ends the first shutoff;
a second sensor which receives light through the lens, the second sensor being different from the first sensor;
an exposure amount determiner which determines, in response to the detected shutter operation, an exposure amount based on the light received by the second sensor when the first sensor does not receive light through the lens; and
a still image generator which generates a still image based on the light received by the first sensor and the exposure amount determined by the exposure amount determiner.
2. The digital camera according to claim 1 , wherein
the exposure amount determiner determines the exposure amount after the shutoff member performs the first shutoff,
the shutoff member ends the first shutoff after the exposure amount determiner determines the exposure amount, and
the still image generator generates the still image after the shutoff member ends the first shutoff.
3. The digital camera according to claim 1 , wherein
the second sensor receives the light which passes through the lens and is diffused by a diffusing portion.
4. The digital camera according to claim 3 , wherein
a surface of the diffusing portion is formed with a rough material.
5. The digital camera according to claim 3 , wherein
the diffusing portion is a shutter curtain.
6. The digital camera according to claim 1 , wherein
the display displays the moving image based on the light received by the first sensor with an electronic shutter.
7. The digital camera according to claim 2 , wherein
the shutoff member performs the first shutoff by closing a shutter curtain in response to the shutter operation,
the shutoff member ends the first shutoff by opening the shutter curtain after the exposure amount determiner determines the exposure amount, and p 1 the still image generator generates the still image based on the light received by the first sensor with the shutter curtain.
8. The digital camera according to claim 7 , wherein
after a period according to the exposure amount from a time when the shutoff member ends the first shutoff, the shutoff member performs a second shutoff of the light which is incident on the first sensor through the lens.
9. The digital camera according to claim 1 , wherein
the display displays the moving image based on the light received by the first sensor after the still image generator generates the still image.
10. The digital camera according to claim 1 , wherein
the first senor is an area image sensor.
11. A method of controlling a digital camera, the method comprising:
displaying a moving image based on light received by a first sensor, the light being through the lens;
detecting a shutter operation while displaying the moving image;
performing a first shutoff of the light received by the first sensor through the lens, in response to the detected shutter operation;
determining, in response to the detected shutter operation, an exposure amount based on light received by a second sensor different from the first sensor, the light being through the lens when the first sensor does not receive light through the lens;
ending the first shutoff; and
generating a still image based on the light received by the first sensor and the exposure amount being determined.
12. The method according to claim 11 , wherein
the exposure amount is determined after the first shutoff is performed,
the first shutoff is ended after the exposure amount is determined, and
the still image is generated after the first shutoff is ended.
13. The method according to claim 11 , wherein
the second sensor receives the light which passes through the lens and is diffused by a diffusing portion.
14. The method according to claim 13 , wherein
a surface of the diffusing portion is formed with a rough material.
15. The method according to claim 13 , wherein
the diffusing portion is a shutter curtain.
16. The method according to claim 11 , wherein
the moving image is displayed based on the light received by the first sensor with an electronic shutter.
17. The method according to claim 12 , wherein
the first shutoff is performed by closing a shutter curtain in response to the shutter operation,
the first shutoff is ended by opening the shutter curtain after the exposure amount is determined, and
the still image is generated based on the light received by the first sensor with the shutter curtain.
18. The method according to claim 17 , further comprising:
after a period according to the exposure amount from a time when the first shutoff is ended, performing a second shutoff of the light which is incident on the first sensor through the lens.
19. The method according to claim 11 , further comprising:
displaying a moving image based on the light received by the first sensor after the still image is generated.
20. The method according to claim 11 , wherein
the first senor is an area image sensor.